79631895967 has 4 divisors (see below), whose sum is σ = 85757426440. Its totient is φ = 73506365496.

The previous prime is 79631895953. The next prime is 79631895971. The reversal of 79631895967 is 76959813697.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 79631895967 - 2¹¹ = 79631893919 is a prime.

It is a super-2 number, since 2×79631895967² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79631895896 and 79631895905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79631895997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3062765217 + ... + 3062765242.

It is an arithmetic number, because the mean of its divisors is an integer number (21439356610).

Almost surely, 2^79631895967 is an apocalyptic number.

79631895967 is a deficient number, since it is larger than the sum of its proper divisors (6125530473).

79631895967 is a wasteful number, since it uses less digits than its factorization.

79631895967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6125530472.

The product of its digits is 154314720, while the sum is 70.

The spelling of 79631895967 in words is "seventy-nine billion, six hundred thirty-one million, eight hundred ninety-five thousand, nine hundred sixty-seven".